View visual findings from this job here - https://visionshare.xoi.io/?id=XA-DE27-ABFFC0F7601042B5A6C45C4419F65DCF Return to replace wire harness from control board to hydronic heating relay: * At arrival confirmed that the thermostat is still not reading the hydronic heating coil * Shut power to the air handler * Remove the blower door * Disconnected the existing wire harness from the control board to the hydronic heating coil- This harness also connects to the transformer and the blower motor- All connections removed * Installed brand new wire harness, connecting to control board, Transformer, Hydronic heating coil and blower motor * Return the power to air handler and test operations * The carrier Infiniti thermostat is still not identifying the hydronic heating zone- Reset and reinstall multiple times- Will still not read the hydronic heating zone The customer chose to abandon the carrier Infiniti system and install a standard Honeywell T4 thermostat With a standard switching rel